Calculate k factor bend allowance and y factor for sheet metal bending.
Creo sheet metal k factor.
The k factor in sheet metal working is the ratio of the neutral axis to the material thickness.
Using a variety of y and k factor bend allowance calculations designers can create flat patterns of the designs.
Smt part bend allowance factor sets the value of y factor or k factor.
Our design engineers typically use a factor of 0 4 for our air formed press brake parts.
In this article we will discuss sheetmetal bend deduction bend allowance k factor y factor and sheet metal flat pattern calculations.
These parameters can also be set using the bend allowance area of the sheetmetal preferences dialog box.
The location of the neutral axis varies and is based on the material s physical properties and its thickness.
When you bend sheet metal the neutral axis shifts toward the inside surface of the bend.
The k factor is defined as the ratio between the material thickness t and the neutral fibre axis t i e.
The result is parametric fully associative solid models of sheet metal parts and assemblies.
Overview this comprehensive suite of creo sheet metal design tools helps users create features such as walls bends punches notches forms and relief features.
The k factor is the ratio of the neutral axis location t to the material thickness mt.
The part of the material that bends without being compressed nor elongated.
Creo sheet metal tutorial.
Creating feature specific bend allowance using the bend allowance tab of sheet metal tools when available.
K factor a constant determined by dividing the thickness of the sheet by the location of the neutral axis which is the part of sheet metal that does not change length.
The line where the transition from compression to stretching occurs is called the neutral axis.
K factor is an import.
Mathematically k factor value is equal to the ratio of position of neutral axis and sheet thickness.
I had a question on k factors for our 3 d modeling software.
This video to describe setting of k factor in creo and how to change developed length of sheet metal parts.
With a y factor of 5 creo default the flat pattern ws 7 0354 long.
The k factor is the most important and elusive variable of bending because it varies both as a function of the material and according to parameters such as angle and tooling.
Reference pages explaining k factor and y factor.
With a y factor of 69115 k factor of 44 the flat pattern was 7 1312 long.
